package com.ruoyi.auth.service;

import com.ruoyi.common.core.constant.Constants;
import com.ruoyi.common.core.constant.SecurityConstants;
import com.ruoyi.common.core.constant.UserConstants;
import com.ruoyi.common.core.domain.R;
import com.ruoyi.common.core.enums.UserStatus;
import com.ruoyi.common.core.exception.ServiceException;
import com.ruoyi.common.core.utils.ServletUtils;
import com.ruoyi.common.core.utils.StringUtils;
import com.ruoyi.common.core.utils.ip.IpUtils;
import com.ruoyi.common.security.utils.SecurityUtils;
import com.ruoyi.system.api.RemoteLogService;
import com.ruoyi.system.api.RemoteUserService;
import com.ruoyi.system.api.domain.SysLogininfor;
import com.ruoyi.system.api.domain.SysUser;
import com.ruoyi.system.api.model.LoginUser;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;

/**
 * 登录校验方法
 *
 * @author ruoyi
 */
@Component
public class SysLoginService {
  @Autowired private RemoteLogService remoteLogService;

  @Autowired private RemoteUserService remoteUserService;

  /** 登录 */
  public LoginUser login(String username, String password) {
    // 用户名或密码为空 错误
    if (StringUtils.isAnyBlank(username, password)) {
      recordLogininfor(username, Constants.LOGIN_FAIL, "用户/密码必须填写");
      throw new ServiceException("用户/密码必须填写");
    }
    // 密码如果不在指定范围内 错误
    if (password.length() < UserConstants.PASSWORD_MIN_LENGTH
        || password.length() > UserConstants.PASSWORD_MAX_LENGTH) {
      recordLogininfor(username, Constants.LOGIN_FAIL, "用户密码不在指定范围");
      throw new ServiceException("用户密码不在指定范围");
    }
    // 用户名不在指定范围内 错误
    if (username.length() < UserConstants.USERNAME_MIN_LENGTH
        || username.length() > UserConstants.USERNAME_MAX_LENGTH) {
      recordLogininfor(username, Constants.LOGIN_FAIL, "用户名不在指定范围");
      throw new ServiceException("用户名不在指定范围");
    }
    // 查询用户信息
    R<LoginUser> userResult = remoteUserService.getUserInfo(username, SecurityConstants.INNER);

    if (R.FAIL == userResult.getCode()) {
      throw new ServiceException(userResult.getMsg());
    }

    if (StringUtils.isNull(userResult) || StringUtils.isNull(userResult.getData())) {
      recordLogininfor(username, Constants.LOGIN_FAIL, "登录用户不存在");
      throw new ServiceException("登录用户：" + username + " 不存在");
    }
    LoginUser userInfo = userResult.getData();
    SysUser user = userResult.getData().getSysUser();
    if (UserStatus.DELETED.getCode().equals(user.getDelFlag())) {
      recordLogininfor(username, Constants.LOGIN_FAIL, "对不起，您的账号已被删除");
      throw new ServiceException("对不起，您的账号：" + username + " 已被删除");
    }
    if (UserStatus.DISABLE.getCode().equals(user.getStatus())) {
      recordLogininfor(username, Constants.LOGIN_FAIL, "用户已停用，请联系管理员");
      throw new ServiceException("对不起，您的账号：" + username + " 已停用");
    }
    if (!SecurityUtils.matchesPassword(password, user.getPassword())) {
      recordLogininfor(username, Constants.LOGIN_FAIL, "用户密码错误");
      throw new ServiceException("用户不存在/密码错误");
    }
    recordLogininfor(username, Constants.LOGIN_SUCCESS, "登录成功");
    return userInfo;
  }

  public void logout(String loginName) {
    recordLogininfor(loginName, Constants.LOGOUT, "退出成功");
  }

  /** 注册 */
  public void register(String username, String password) {
    // 用户名或密码为空 错误
    if (StringUtils.isAnyBlank(username, password)) {
      throw new ServiceException("用户/密码必须填写");
    }
    if (username.length() < UserConstants.USERNAME_MIN_LENGTH
        || username.length() > UserConstants.USERNAME_MAX_LENGTH) {
      throw new ServiceException("账户长度必须在2到20个字符之间");
    }
    if (password.length() < UserConstants.PASSWORD_MIN_LENGTH
        || password.length() > UserConstants.PASSWORD_MAX_LENGTH) {
      throw new ServiceException("密码长度必须在5到20个字符之间");
    }

    // 注册用户信息
    SysUser sysUser = new SysUser();
    sysUser.setUserName(username);
    sysUser.setNickName(username);
    sysUser.setPassword(SecurityUtils.encryptPassword(password));
    R<?> registerResult = remoteUserService.registerUserInfo(sysUser, SecurityConstants.INNER);

    if (R.FAIL == registerResult.getCode()) {
      throw new ServiceException(registerResult.getMsg());
    }
    recordLogininfor(username, Constants.REGISTER, "注册成功");
  }

  /**
   * 记录登录信息
   *
   * @param username 用户名
   * @param status 状态
   * @param message 消息内容
   * @return
   */
  public void recordLogininfor(String username, String status, String message) {
    SysLogininfor logininfor = new SysLogininfor();
    logininfor.setUserName(username);
    logininfor.setIpaddr(IpUtils.getIpAddr(ServletUtils.getRequest()));
    logininfor.setMsg(message);
    // 日志状态
    if (StringUtils.equalsAny(
        status, Constants.LOGIN_SUCCESS, Constants.LOGOUT, Constants.REGISTER)) {
      logininfor.setStatus(Constants.LOGIN_SUCCESS_STATUS);
    } else if (Constants.LOGIN_FAIL.equals(status)) {
      logininfor.setStatus(Constants.LOGIN_FAIL_STATUS);
    }
    remoteLogService.saveLogininfor(logininfor, SecurityConstants.INNER);
  }
}
